From cb76eb812ee03187da3b46e190895b55019d2133 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 25 Jun 2012 03:37:00 -0700 Subject: [PATCH] ARM: shmobile: r8a7740: add DMAEngine support for SDHI Current shdmac can support SDHI DMAC on r8a7740. This support reduce CPU duty when SDHI access. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/include/mach/r8a7740.h | 6 ++++++ arch/arm/mach-shmobile/setup-r8a7740.c | 30 +++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h index f71507b..0f14ce8 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7740.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h @@ -591,6 +591,12 @@ enum { /* DMA slave IDs */ enum { SHDMA_SLAVE_INVALID, + SHDMA_SLAVE_SDHI0_RX, + SHDMA_SLAVE_SDHI0_TX, + SHDMA_SLAVE_SDHI1_RX, + SHDMA_SLAVE_SDHI1_TX, + SHDMA_SLAVE_SDHI2_RX, + SHDMA_SLAVE_SDHI2_TX, SHDMA_SLAVE_FSIA_RX, SHDMA_SLAVE_FSIA_TX, SHDMA_SLAVE_FSIB_TX, diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index 516a7ec..320c43a 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -306,6 +306,36 @@ enum { static const struct sh_dmae_slave_config r8a7740_dmae_slaves[] = { { + .slave_id = SHDMA_SLAVE_SDHI0_TX, + .addr = 0xe6850030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xc1, + }, { + .slave_id = SHDMA_SLAVE_SDHI0_RX, + .addr = 0xe6850030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xc2, + }, { + .slave_id = SHDMA_SLAVE_SDHI1_TX, + .addr = 0xe6860030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xc9, + }, { + .slave_id = SHDMA_SLAVE_SDHI1_RX, + .addr = 0xe6860030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xca, + }, { + .slave_id = SHDMA_SLAVE_SDHI2_TX, + .addr = 0xe6870030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xcd, + }, { + .slave_id = SHDMA_SLAVE_SDHI2_RX, + .addr = 0xe6870030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xce, + }, { .slave_id = SHDMA_SLAVE_FSIA_TX, .addr = 0xfe1f0024, .chcr = CHCR_TX(XMIT_SZ_32BIT), -- 2.7.4